Publications by authors named "Qingdian Lin"
Article Synopsis
- - A new, all-fiber method for measuring dispersion in chirped fiber Bragg gratings (CFBGs) has been proposed, showcasing its high-speed and high-resolution capabilities.
- - Experimental results for 1-4 order dispersion in CFBGs align closely with theoretical predictions, demonstrating the method's accuracy and repeatability.
- - This innovative approach surpasses existing techniques in measurement speed and precision, and is expected to significantly enhance applications in fiber chirped pulse amplifiers and ultrafast lasers.
Conventional optical fiber temperature/strain sensors often have to make compromises between the resolution and the dynamic range. Here we present a new method that meets the measurement requirements for both high resolution and large dynamic range. A high-quality optical fiber Fabry-Perot Interferometer (FPI) constructed using a pair of chirped fiber Bragg gratings is employed as the sensor and a dual-mode direct spectrum interrogation method is proposed to identify the small drift of external temperature or strain.
View Article and Find Full Text PDFMeasurement resolution and dynamic range of conventional optical fiber sensors are often mutually restricted. In this work, an in-fiber chirped Fabry-Perot cavity (interferometer) is proposed, for the first time to our knowledge, to resolve the conflict between the resolution and dynamic range. The chirped Fabry-Perot interferometer is constructed by two chirped fiber Bragg gratings inscribed in the opposite directions, resulting in a gradually varied (i.
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